in perchloric acid recrystn. (H2O), drying (100-110°C);
参考文献
Babaeva, V. P.; Rosolovskii, V. Ya.
Russian Journal of Inorganic Chemistry (Translation of Zhurnal Neorganicheskoi Khimii), 1989 , vol. 34, p. 193 - 196
Zhurnal Neorganicheskoi Khimii, 1989 , vol. 34, p. 346 - 350